Answer:
A. Ketones
Explanation:
I took the test and 'Amino Acids' was incorrect. Ketones are formed from the breakdown of the tissue and are released into the bloodstream, also known as ketonemia.
B. the building of dams.
C. a slow recharge rate.
D. infiltration by acidic water.
Answer: Option A) sinkhole formation.
Explanation:
A sinkhole refers to any dug-out or depressed area of land where human
or animal waste (excreta) are deposited.
Now, since these wastes contains water and are biodegradable by microorganisms, the fecal matter could be infected and in turns infect groundwater.
The contaminated-groundwater poses danger due to disease-causing organisms like
- vibrio cholerae, causing cholera
- Salmonella typhi, causing typhoid outbreak present, and also reduces volume of suitable drinking water in the community
Thus, the answer is sinkhole formation
Answer
Wind may be involved in the formation of sandstone arches by facilitating erosion which wore away exposed sections of rocks and enlarges the cracks on the surface forming marrow sandstone fins.
Explanation
Sandstone arches can be formed when a large piece of sandstone flaked off as a result of high winds. In addition to that, alternative frost and thawing can result into crumbling of porous sandstone which will in the long run cut through some fins. These resulting holes enlarge to form arches with effects of weathering and rock fall caused by wind.
Answer:
Sandstone arches are formed when large pieces of sandstone flaked off, withered or cut down due to the affect of high current winds. The sandstones which are exposed to such high speed winds forms bridge or arch creating a cavity in the sandstone.
When an electron jumps up from a low energy level to a higher one, light energy is emitted.
Every orbit around the nucleus of an atom is the same energy level.
After they emit light, electrons are sucked into the nucleus of the atom.
Answer: Option (a) is the correct answer.
Explanation:
Every orbit has a fixed value of energy which means that energy is quantised. When heat is absorbed by the atom then the electrons go from low energy level to high energy level.
Whereas when heat or energy is released by the atom then electrons move from high energy level to low energy level. As a result, this heat is released in the form of visible light.
Thus, we can conclude that the statement when an electron drops down from a high energy level to a lower one, light energy is emitted, is true according to the quantum model of the atom.
b. mutualistic species
c. keystone species
d. secondary consumer